Electric fields

ABCD are 2 parallel plates,between which a potential difference of 10,000V is maintained.An electron starting from rest,from point P,moves towards a small hole at Q.
After emerging from Q,the electron passes through a region independent of any electric fields and then enters the space between 2 plates EF and GH ,between which a vertical electric field 1000NC-1 is maintained.
The electron then strikes the lower plate at a point X.
If the distance d is 0.01m,find the distance GX

2. Relevant equations

Equations of motion
F=ma
F=Eq
E=V/x (I think?)

3. The attempt at a solution
For plates AB,CD,

F=ma
F/m=a
Eq/m=a
Vq/xm = a q= charge of an electron
m=mass of an electron

[tex]\rightarrow[/tex] s=ut s=GX=y, u= v
y =[tex]\sqrt{m2*10,000q/m}[/tex]*[tex]\sqrt{0.02/g}[/tex]
But I don't know q,m and I haven't used the electric field intensity (1000NC-1)anywhere in my calculations.
What am I doing wrong?

Staff: Mentor

When I use a distance d of 0.1 m, I get almost exactly 2 m as my answer for the horizontal displacement. In other words, when I use a distance which is wrong by a factor of 10, I get an answer which is wrong by a factor of 100. Indicates to me that maybe there's a unit mismatch somewhere? Centimeters or millimeters, maybe?

Thank you,merryjman.
Thank you Doc Al.Thank you both so much!
our teacher dictated the question for us,so I may have got the units wrong while taking it down & I don't know what book it's from to check,so
I apologise for any trouble caused.